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rocks that originate underground - part 32 of 38. since igneous and metamorphic rocks are not produced by surface processes, the film suggests they must be formed within the earth's crust. conditions are reconstructed by use of indirect evidence and the f - sample size stock videos & royalty-free footage
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Rocks that Originate Underground - part 32 of 38. Since igneous and metamorphic rocks are not produced by surface processes, the film suggests they must be formed within the earth's crust. Conditions are reconstructed by use of indirect evidence and the f
Microscope, Crystal, Rock - Object
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